8.51am On a more positive, thrusting note, the other big event planned for today is the launch of Endeavour space shuttle, on its final flight. The orbiter is due to take off around 8.45pm UK time on a mission to the International Space Station. Space.com are always good for coverage. We'll keep an eye on preparations.

8.45am Important developments are expected in Syria today, where demonstrators angry at the government's heavy-handedness plan a 'day of rage'.

8.38am The day begins with tragic news from the southern United States. The death toll from a series of tornadoes now stands at 297, mostly in Alabama. President Obama will visit later today.

8.30am Welcome to our live blog. Our coverage of the day's events will begin shortly. Twitter hashtag for the day is #nottheroyalwedding